i have no clue about this problem. Since the 7.11 update on my two RB760iGS. I see very slow (<10kb/sec) tcp/https connection from one raspberry-pi to the internet.
The Setup is more complex I have to give some context:
the rpi runs on the main interface and 5 macvlans which are bound to lxc containers. All these vlans are bound to vlans with unique gateways on the RB760iGS. All these gateways are masquare to one uplink vlan on RB760iGS (vrrp). All five macvlans are working perfect, which helps me to cross out that there is a physical problem. If i use the main interface(untagged) on the rpi i get this very slow connections, but only if it runs through the masquared on the RB760iGS. If i use the http proxy on the RB760iGS all slownes is gone.
I will downgrade 7.10.2 in the next step and expect that the slowness will be disappear.
I did some tcpdumps and found that the rpi send every packet atleast 3-4 times. Which could point to some packetlosses — but ping -f (external-ip) show no problems. The RPI send packets all have correct checksum — i try to get some packets from the uplink to verify the checksums but this did not worked out well.
I know about that sniffing changes the packet-flow — but until 7.10.2 everything was working perfectly.
I switched off the hardware-offloading during my search.
Still the question what changed in 7.11 so cause this problem?
Or what could I do to restore a normal connection speed.
It’s effectively the fast performance recovery option until a bug fixed RouterOS release.
Your continued participation in resolving this issue is encouraged and very welcome.
i could go back to the old version but do you have enough information to fix the problem in future releases?
or should i provide any thing which helps to fix it?